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  1. 2 Electronic Journal of Polish Agricultural Universities. Series Environmental Development

  2. 2 Herba Polonica

  3. 2 Polish Journal of Environmental Studies

  4. 1 Acta Agrobotanica

  5. 1 Acta Agrophysica

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  1. 2 Czarna A.

  2. 2 Czarnowska K.

  3. 2 Krolak E.

  4. 2 Marciniuk P.

  5. 1 Apolinarska K.

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  1. 1 2019

  2. 1 2016

  3. 1 2015

  4. 2 2010

  5. 2 2009

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1

Essential oil composition of Taraxacum officinale

100%
Bylka W., Matlawska I., Franski R.
Acta Physiologiae Plantarum
|
2010
|
tom 32
|
nr 2
The gas chromatography–mass spectrometry (GC–MS) analysis of essential oil obtained by hydrodistillation from the flower of Taraxacum officinale L. revealed the presence of 25 compounds with 1,3-dimethylbenzene, 1,2-dimethylbenzene, 1-ethyl-3-methylbenzene, heneicosane and tricosane as the main components.
2

Accumulation rate of polychlorinated biphenyls [PCBs] in dandelion [Taraxacum officinale] in the conditions of soil contamination with oil derivatives

86%
Malawska M., Wilkomirski B.
Roczniki Państwowego Zakładu Higieny
|
2001
|
tom 52
|
nr 4
The study concerned PCB accumulation in soil at two depths (S1: 0-20 cm, S2: 20- 40 cm) and in Taraxacum officinale plants. It was carried out within railway junctions and near railway lines. Various degrees of PCB contamination were detected in soil and parts of plants above the ground level. PCB content in most soil samples was between 100 and 250 ng/g, while in plants it varied from 100 to 800 ng/g. An analysis of the distribution of different groups of PCB congeners in plant and soil material has revealed that the content of hepta-CB and hexa-CB fractions was the highest of all PCBs for both soil depths, as well as for plants. No significant differences were found for the degree of various PCB congener group penetration into the soil, neither in railway junction areas, nor in the vicinity of railway tracks. Statistical test of pair comparison, performed in order to establish the rate at which plants accumulate different groups of PCB congeners has revealed significant differences in accumulation rates for the following pairs: penta-chlorinated congeners are accumulated at a higher rate than tetra-chlorinated ones and hexa-chlorinated congeners are accumulated at a higher rate than penta-chlorinated ones. This phenomenon occurs in the area of railway junctions (areas heavily polluted with oil derivatives). It was found that in the area of railway lines (areas with low levels of pollution) hexa-chlorinated congeners were accumulated at a higher rate than tetra- and penta-chlorinated ones. No significant differences were found for other pairs of PCB congeners. The use of dandelion as a bioindicator of environmental pollution with PCB congeners seems to be a good and reliable source of information about the emission of those substances into the natural environment.
3

Accumulation of Zn, Pb, Cu and Cd in dandelion (Taraxacum officinale) leaves from the area of Warsaw

72%
Czarnowska K., Chlibiuk M., Witusinski J.
Annals of Warsaw Agricultural University. Horticulture (Landscape Architecture)
|
2004
|
tom 25
4
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Heavy metals in the dandelion and apple tree pollen from the different terrestrial ecosystems of the Carpathian Region

72%
Klym O., Stadnytska O.
Acta Scientiarum Polonorum. Zootechnica
|
2019
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tom 18
|
nr 3
5
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The allelopathic effect of Taraxacum officinale F.G. Wigg on the seeds germination and initial growth of Lolium westerwoldicum R.Br.

72%
Jankowska J., Ciepiela G. A., Sosnowski J., Kolczarek R., Jankowski K.
Acta Agrobotanica
|
2009
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tom 62
|
nr 2
The common dandelion (Taraxacum officinale F.H. Wigg) is a perennial plant often found in large concentrations in the sward of natural meadows. This species expands quickly, displacing other species. In literature there is a lack of data relating to the effect of common dandelion on plants growing in its vicinity. It is also not known why this species creates large clusters. Perhaps it competes with different plants through the allelopathic effect. Hence, the aim of this study was to determine the influence of water extracts from leaves and roots of common dandelion (Taraxacum officinale) as well as soil extracts from the root layer of this species on seed germination and the initial growth of Lolium westerwoldicum R.Br. The investigated material comprised leaves and roots of Taraxacum officinale. The germination biotest most often used in experiments was applied. The seeds germination energy of westerwolds ryegrass was most inhibited by plant extracts prepared from roots and leaves of Taraxacum officinale. The germination ability of seeds of Lolium westerwoldicum was the highest in the treatments in which soil extracts were applied; however, the value of this feature was limited to a larger extent by the plant extracts from leaves of Taraxacum officinale than from roots. Higher concentrations of both soil and plant solutions had an inhibitory effect both on root growth and the growth of the leaf sheath and leaves of westerwolds ryegrass. The results of the tested parameters can confirm the allelopathic effect of Taraxacum officinale on germination and initial growth of Lolium westerwoldicum, and especially that of extracts prepared from leaves.
6
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Taraxacum scanicum Dahlst. group [section Erythrosperma] in Poland: chorology and seed and pollen morphology of the microspecies

72%
Marciniuk J., Vasut R. J., Marciniuk P., Czarna A.
Acta Societatis Botanicorum Poloniae
|
2009
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tom 78
|
nr 2
115-121
The genus Taraxacum is taxonomically complicated due to apomixis. Therefore, there are significant differences in knowledge of regional Taraxacum-Floras among European countries. Similarly, some taxa are well characterised with well-known distribution, whereas some ones are known e.g. from a single locality. Taraxacum scanicum of section Erythrosperma is one of the most common microspecies of this section in Europe. Recently, this taxon was split into three microspecies. In this study we map the distribution of three described taxa of this group in Poland, i.e. T. scanicum s.s., T. prunicolor and T. cristatum. The survey showed that T. scanicum has a similar distribution as T. prunicolor in Poland. This is in contrast with the hitherto known distribution of both taxa. T. cristatum was found at a single locality that is quite distant from the distribution in southern central Europe. We also provide with new morphological characteristics of achenes and pollen for T. scanicum s.s. and T. prunicolor.
7

Effect of environmental conditions on germination and persistence of Taraxacum officinale WEB. ex WIGGERS seeds in a soil bank

72%
Bochenek A., Gielwanowska I., Zuk-Golaszewska K.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2008
|
tom 524
The aim of this study was to explain how temperature, desiccation, light and nitrate affect the seasonal pattern of germination and persistence of dandelion achenes. Directly after collection, Taraxacum officinale Web. ex Wiggers achenes were characterized by non-deep primary dormancy, while dry stored at a low temperature, they showed slight seasonal variations of dormancy level. Both high and low soil temperatures caused dormancy release in dandelion seeds. Dandelion achenes did not form a persistent soil bank. The decline of viable seeds was probably due to long-term sub-zero soil temperatures accompanied by its considerable hydration. Nitrate may be a component of the system of environmental signals which, along with light and desiccation, would enable dandelion seeds to detect even the smallest gaps in dense vegetation. As the dormancy changes are fast, the detection of these gaps by Taraxacum officinale achenes may be especially effective. Such ability of dandelion seeds may explain the remarkable ease with which this species occupies grassland areas densely covered with vegetation.
8
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Sulphur content in dandelion [Taraxacum officinale] as an indicator of threat to agroecosystems

72%
Terelak H., Motowicka-Terelak T.
Acta Agrophysica
|
2001
|
tom 51
Dandelion (Taraxacnn officinale) was used in a KBN-supported project focused on the assessment of the extent to which Polish agricultural environment is contaminated with sulphur. Studies were carried out in different regions of the country. Sulphur content in leaves ofthat plant at full blooming varied with the level of sulphur contamination of soil and air. Dandelions from the heavily industrialised areas of the Upper Silesia, Legnica-Głogów Copper Mining District, and the Tarnobrzeg Sulphur Mining District showed high sulphur content and the S content (0.4%) in excess of the threshold value for this species.
9

Herbs used in pharmacy and their potential on the cosmetic market

58%
Kamczycka B., Malinowska P.
Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze
|
2015
|
nr 1
10

Gatunki rodzaju Taraxacum [Asteraceae] z terenu Wielkopolski

58%
Glowacki Z., Czarna A.
Acta Scientiarum Polonorum. Biologia
|
2003
|
tom 02
|
nr 1-2
51-54
11

Pierwsze zieleniny na naszych stolach

58%
Filipek M.
Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała
|
2002
|
nr 05
26-27
12

Habitat requirements of marsh dandelions (Taraxacum) in Polish and Estonian coastal grasslands

58%
Bosiacka B., Kull T., Wieclaw H., Marciniuk P., Podlasinski M.
Polish Journal of Ecology
|
2016
|
tom 64
|
nr 2
Factors determining the distribution of highly endangered marsh dandelion species in Polish and Estonian coastal grasslands have been investigated. The aim of this study was twofold: (i) to determine which environmental variables are responsible for the vegetation patterns in coastal grasslands with marsh dandelion and (ii) to analyse the ecological spectra of the identified marsh dandelion species. Altogether 51 plots were sampled (in 2013 and 2014). They were used following statistical analysis: DCA, CCA, Spearman's rank correlation test, Kruskal-Wallis test and hierarchical divisive cluster analysis (TWINSPAN). In total, three marsh dandelion species were found in Polish and Estonian coastal grasslands. The only species found in Poland was Taraxacum balticum. In Estonia all three species occur: T. balticum, T. decolorans and T. suecicum. Taraxacum balticum has been found in the widest ranges of all soil properties included, usually on organic, saline, non-carbonate and acid to slightly acid substrate. Taraxacum suecicum and T. decolorans have been found only on mineral, non-saline and slightly alkaline to alkaline substrate. The ecological spectra determined for endangered marsh dandelion species can be used to improve the methods of their protection. Nomenclature: mosses - Ochyra et al. (2003); vascular plants - Mirek et al. (2002).
13

The content of some metals in dandelion [Taraxacum officinale Web.] plants from natural sites in Malopolska

58%
Capecka E., Gaweda M.
Herba Polonica
|
2001
|
tom 47
|
nr 3
W mniszku pospolitym (Taraxacum officinale Web.), zebranym z 8 stanowisk jego naturalnego występowania w województwie małopolskim, oznaczono zawartość żelaza, manganu, chromu, niklu, cynku, miedzi, ołowiu i kadmu, oddzielnie dla korzeni, liści, pędów kwiatostanowych oraz koszyczków kwiatowych. W glebie spod roślin określono poziom tych samych metali, a także niektóre fizykochemiczne jej własności. Wielkość kumulacji metali w roślinach związana była nie tylko z ich całkowitą zawartością w podłożu, ale również z jego pojemnością sorpcyjną i poziomem materii organicznej. Poszczególne części roślin mniszka gromadziły analizowane pierwiastki w różnym stopniu. W korzeniach stwierdzono najwyższą zawartość cynku, miedzi i kadmu, w liściach - manganu, chromu, niklu i ołowiu, w koszyczkach kwiatowych - ołowiu. Istotnie mniej metali zawierały pędy kwiatostanowe. Porównanie uzyskanych wyników analizy mniszka z dopuszczalną zawartością cynku i miedzi dla roślinnych produktów żywnościowych, a ołowiu i kadmu dla leczniczych surowców roślinnych, wykazało przekroczenie norm dla cynku w większości badanych prób oraz dla kadmu - we wszystkich próbach.
14

Accumulation of Zn, Cu, Pb and Cd by dandelion [Taraxacum officinale Web.] in environments with various degrees of metallic contamination

58%
Krolak E.
Polish Journal of Environmental Studies
|
2003
|
tom 12
|
nr 6
Contents of Zn, Cu, Pb and Cd have been examined in soils and dandelion (Taraxacum officinale Web.) in uncontaminated (Biała Podlaska, area of eastern Poland) and contaminated environments (Ruda Śląska and Bytom - Upper Silesia area). Based on the value of the cumulation factor (FC) a reduction of Zn and Cu collection by dandelion has been observed along with an increase of the concentration of these metals in the soil. Such a dependence is not so pronounced in the case of Pb and Cd. Even in an environment con­taminated excessively with Cd (IV degree soil contamination) this element is collected by dandelion only in concentrations proportional to its content in the soil.
15

Heavy metal content in falling dusts, soil and dandelion [Taraxacum officinale Webb.] in Southern Podlasie Lowland

58%
Krolak E.
Electronic Journal of Polish Agricultural Universities. Series Environmental Development
|
2001
|
tom 04
|
nr 1
The concentration levels of the following metals: Cd, Pb, Zn, Mn, Fe and Ni in falling dusts, soil and dandelion (Taraxacum officinale Webb.) were examined in selected areas of Southern Podlasie Lowland. The research was conducted from 1995 to 1999. The metals were marked by means of the AAS technique. The deposition of Cd and Pb metals did not exceed the values standardized in the Polish legislation, and the mean metal concentration in the soil was the same as the natural content. The mean metal concentration in dandelion leaves and root was within the values accepted as background in professional literature. It was proved that in agricultural lands that were not excessively loaded with heavy metals, the metal level in the root of the plant is of higher significance than in the leaves when using dandelion for bio-indicatory purposes.
16

A study of soil pollution by heavy metals in the city of Poznań [Poland] using dandelion [Taraxacum officinale Web.] as a bioindicator

58%
Diatta J. B., Grzebisz W., Apolinarska K.
Electronic Journal of Polish Agricultural Universities. Series Environmental Development
|
2003
|
tom 06
|
nr 2
Monitoring the pollution status of the environment by using plants is one of the main topics of environmental biogeochemistry. The bioavailability and mobility of heavy metals (Zn, Cu, Pb, Cd and Ni) in urban soil of Poznań (Poland) were assessed on the basis of upper parts of dandelion (Taraxacum officinale WEB) and soil samples collected in May and July 1998. Sampling points were located along 2 roads crossing the town along West-East and North-South directions. All soils were characterized by a negligible share of clay particles, high content of organic carbon (about 1.5 g kg-1) and pH above 7.0.
17

Chromatographical analysis of phenolic acids occurring in the roots of Taraxacum officinale

58%
Najda A., Sugier D.
Herba Polonica
|
2007
|
tom 53
|
nr 3
Two-year-old roots of the dandelion (Taraxacum officinale), whose collection was carried out in six stages, from May till October, were used in laboratory experiments. The presence of four phenolic acids: caffeic acid cichoric acid, chlorogenic acid and p-hydroxybenzoic acid was identified and confirmed by the HPLC method. The changes in content of particular phenolic acids in the roots collected at various stages were also identified. The roots, the collection of which was carried out at blossoming stage indicated the highest content of chlorogenic and cichoric acid.
18

The content of heavy metals in an indicator plant Taraxacum officinale in Warsaw

58%
Czarnowska K., Milewska A.
Polish Journal of Environmental Studies
|
2000
|
tom 09
|
nr 2
The present paper studies the content of heavy metals: Fe, Mn, Zn, Cu, Pb, Ni and Cd in the foliage of an indicator plant - dandelion - as collected from the lawns and parks of the Warsaw metroplitan area. The results suggest heavy accumulation of Fe, Zn, Pb and Cd as a consequence of the impact of traffic-born pollution.
19
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Phenolic content and antioxidant activity of different types of Polish honey - A short report

44%
Wilczynska A.
Polish Journal of Food and Nutrition Sciences
|
2010
|
tom 60
|
nr 4
Thirty two samples of different types of Polish honeys were investigated in order to assess their total phenolic content by Folin-Ciocalteau method and their potential antioxidant activity by 1,1 diphenyl-2-picrylhydrazyl (DPPH) and ABTS methods. Results of the study showed that the total phenolic content and antioxidant activity differed widely among different honey types. The highest phenolic content and antioxidant activity had dark honeys, while the lowest antioxidant activity and phenolic content were found in pale honeys. Statistical analysis showed that the total phenolic content of honey was correlated with its antioxidant activity.
20

Rosliny zielarskie w apteczce domowej i w kuchni

44%
Haake T.
Wiadomości Zielarskie
|
2002
|
tom 44
|
nr 04
15-16
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